Roy Truly might have just thought about the people under him who worked there at the TSBD because there were a few other people who were not accounted for at that specific time of the day . There was more than one company that had space in the TSBD . Scott Foresman and Allyn Bacon were two companies who distributed school books out of the TSBD . In that time of chaos , I don't believe everyone could have been accounted for . Not all Marines were good shots and that is why the 3 levels , Expert , Sharpshooter and Marksman distinguished the difference in your ability with a rifle . If you were an expert rifleman or a Sharpshooter , you were probably going to be an 0311 grunt during whatever war those idiots in Washington DC had us involved in . I was in the Marines 69-71 and when you got your assignment at the end of Boot Camp and you were good with the rifle then you were probably going to Viet Nam as a grunt . I can still remember our DI calling out names ! He might say Heckett who was an expert with the M14 , Heckett would say Yes Sir and the DI would just say ' You're going ' which was short for you're a grunt and you're whole world was about to change . Then after ITR at Camp Pendleton you got your orders which became real because you were going into the spombleprofglidnoctobuns or you might go to a number of places . I got orders for Iwakuni , Japan and one of my good buddies from Boot Camp was going to Nam . Everything became REAL that day !